Table 12 Potential instances that could lead to inferring patient information
Patient | Type of PI | Year of document | Number of sequential records read to obtain this information | Reason for appearance on CRIS | Confidence in re-identification |
|---|---|---|---|---|---|
2 | Patient prison reference number | 2012 | 12 | No rule to de-identify prison reference numbers or prison contact information | Low: cannot be verified, and misspellings [22] |
Prison contact phone number |  |  | Typographical error in patient’s last name |  | |
Patient last name | Â | Â | Â | Â |